/Engine/Source/Editor/ViewportInteraction/Public/VIGizmoHandle.h
Calculates the transforms of meshes of this handlegroup
void UpdateHandlesRelativeTransformOnAxis ( const FTransform & HandleToCenter, const float AnimationAlpha, const float GizmoScale, const float GizmoHoverScale, const FVector & ViewLocation, class [UActorComponent](API\Runtime\Engine\Components\UActorComponent) * DraggingHandle, const [TArray](API\Runtime\Core\Containers\TArray)< [UActorComponent](API\Runtime\Engine\Components\UActorComponent) * > & HoveringOverHandles )